Khan won by scores of 119-109, 118-110 and 120-108 and then tweeted that he wanted to face Floyd Mayweather in May.

The Bolton man said he had Alexander figured out from round three and promoter Oscar De La Hoya reckoned Khan, in victory, became one of the sport’s leading lights, alongside Manny Pacquiao and Floyd Mayweather.

“We beat him at his own game,” said Khan. “I had to stay smart. Fight at the right time, hit at the right time and I made it easy work. It was still explosive and the crowd was happy. There are big names out there like the Pacquiaos and Mayweathers and that’s where I belong.